Moon Phase Calendar: This calendar function, which is an ornamental
display often found in dress watches, chronicles the phases of the moon
throughout a given month.

Screw-Down Crown: This crown type, which is commonly found in dive
watches, screws into the side of the case via a special tube to lock out debris
and water.

Shock Resistant: This feature is a common mark stamped on the back of
wrist watches to indicate how well a watch copes with mechanical shocks. A watch
described as "shock resistant" has survived a series of shock tests.

Stopwatch: This functionality is designed to measure the amount of
time elapsed from a particular time when the device is activated to when the
device is deactivated.

Tachymeter (Tachometer): This functionality is designed to measure
revolutions per minute.

Timer: A timer is simply a specialized mechanism designed to measure
time intervals.

Q: Why doesn't my quartz watch work?

A: The watch's battery may be dead because of the long-distance transport. Please try to replace the battery. If it still doesn't work, please contact customer service.